Kafka vs RabbitMQ vs Amazon SQS: Picking the Right Message Broker
A developer's guide to choosing between Apache Kafka, RabbitMQ, and Amazon SQS. Covers architecture differences, throughput benchmarks, delivery guarantees, message...
Circuit Breaker Pattern Explained: The Complete Guide
What is the circuit breaker pattern? Learn how it prevents cascading failures in microservices with closed, open, and half-open states....
How to Solve the Thundering Herd Problem in Distributed Systems
What is the thundering herd problem? Learn how cache stampedes crash systems, 6 solutions used by Facebook, Twitter, and Netflix,...
How Consistent Hashing Works
What is consistent hashing and how does it work? Learn how consistent hashing distributes data across servers, handles scaling with...
How Netflix Video Processing Pipeline Works
Deep dive into Netflix video encoding pipeline architecture. Learn how Netflix uses microservices, parallel processing, VMAF quality metrics, and the...
How OpenAI Scales PostgreSQL to 800 Million Users
Learn how OpenAI scales PostgreSQL to handle 800 million ChatGPT users. Deep dive into connection pooling with PgBouncer, read replicas,...
System Design Cheat Sheet: Concepts Every Developer Should Know
A practical system design cheat sheet covering scalability, load balancing, caching, database sharding, CAP theorem, and distributed systems patterns. Essential...
How Google Docs Works Behind the Scenes
How does Google Docs let multiple people edit the same document at once? Learn the system design behind real-time collaboration,...
How Meta Handles Millions of Serverless Function Calls Per Second
Deep dive into Meta's XFaaS serverless platform. Learn how they handle 11.5 million function calls per second with 66% CPU...
Breaking Down X's Open Source Algorithm
Complete breakdown of X's open source recommendation algorithm. Learn how the For You feed works, including the Grok-based transformer model,...
How Snowflake IDs Work
Learn how Snowflake IDs work, their 64-bit structure, and how to implement them in Java. Understand Discord's snowflake ID length,...
Caching Strategies Explained: The Complete Guide
Complete guide to caching strategies and patterns. Learn cache-aside, read-through, write-through, write-behind patterns, Redis caching techniques, database caching strategies, and...
CQRS Pattern: Splitting Read and Write Models
Learn the CQRS pattern with practical examples. Understand when to use Command Query Responsibility Segregation, see real implementation code, and...
How Google Ads Supports 4.8 Billion Users with a SQL Database
Deep dive into Google Spanner architecture. Learn how Google Ads handles 4.8 billion users with a globally distributed SQL database....
Role of Queues in System Design
Deep dive into message queues in system design. Learn when and why to use queues, popular queue technologies like RabbitMQ,...
How Amazon S3 Stores 100 Trillion Objects Without Losing One
Deep dive into Amazon S3 architecture. Learn how S3 achieves 11 nines durability, handles massive scale, and why understanding it...
Modular Monolith: The Architecture Most Teams Actually Need
Learn how modular monolith architecture combines the simplicity of monoliths with the organization of microservices. Understand module boundaries, communication patterns,...
The Complete Guide to Server-Sent Events (SSE)
What is SSE? Server-Sent Events is a web standard for real-time server-to-client streaming over HTTP. Learn about the EventSource API,...
Long Polling Explained: Build Real-Time Apps Without WebSockets
Learn how Long Polling enables real-time communication using plain HTTP. Understand the implementation, trade-offs, and when to choose Long Polling...
How Stock Brokers Push 1 Million Price Updates Per Second to Your Screen
How stock brokers deliver millions of real-time price updates per second using WebSockets, Kafka, and ticker plants. Complete system design...
Stop Blocking Your Paying Customers: Build a Smart Rate Limiter
Learn how to design and implement a dynamic rate limiter that adapts to system load, user behavior, and traffic patterns....
How Shopify Powers 5 Million Stores Without Breaking a Sweat
Deep dive into Shopify's system design and architecture. How they handle millions of merchants, billions in sales, and massive traffic...
How DNS Works: The Complete Guide for Developers
Complete guide to how DNS works for developers. Learn DNS resolution step by step, caching layers, DNS record types (A,...
How Ticket Booking Systems Handle 50,000 People Fighting for One Seat
How ticket booking systems prevent double bookings, handle 50K concurrent users, and process payments. Inside BookMyShow and Ticketmaster architecture.
How Meta Achieves 99.99999999% Cache Consistency
Deep dive into Meta's cache consistency architecture - how they handle billions of users with near-perfect cache consistency using TAO,...
How Slack Built a System That Handles 10+ Billion Messages
Deep dive into Slack's system design and architecture - how they handle millions of users, billions of messages, and maintain...
Distributed Counter System Design
How to design a distributed counter for high-traffic systems. Complete system design guide covering sharded counters, sharded counter architecture, local...
How Stripe Prevents Double Payments With Idempotency Keys
Learn how Stripe prevents double payments using idempotency keys. Complete guide to stripe idempotency with code examples using tok_visa, database...
55 Million Requests Per Second: Inside Cloudflare's Magic
Deep dive into Cloudflare's technical architecture - how 15 PostgreSQL clusters, ClickHouse, and Quicksilver work together to handle 55 million...
How Uber Finds Nearby Drivers at 1 Million Requests per Second
How does Uber find nearby drivers? Learn how Uber's system for finding you nearby drivers works at 1M+ requests per...
How WhatsApp Scaled to Billions of Users with Just 50 Engineers
Learn how WhatsApp handles 100 billion messages daily with a tiny team. Deep dive into Erlang, the actor model, Mnesia...
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